Packing body

ABSTRACT

A packing body ( 1 ) includes a casing portion ( 2 ) which includes an accommodating groove ( 10 ) accommodating a packing object (X) and a lid portion ( 3 ) which is integrally formed with the casing portion ( 2 ) and is capable of being folded on the casing portion ( 2 ) to block an opening of the accommodating groove ( 10 ). The casing portion ( 2 ) includes a first restraining portion ( 14 ) which is provided in the accommodating groove ( 10 ) and restrains the packing object (X) in directions other than the opening direction of the accommodating groove ( 10 ) and a protruding bank portion ( 18 ) which is provided in the entire periphery of the opening of the accommodating groove ( 10 ). The lid portion ( 3 ) includes a second restraining portion ( 20 ) which restrains the packing object (X) in the opening direction of the accommodating groove ( 10 ) when the lid portion is folded on the casing portion ( 2 ) and an engagement concave portion ( 24 ) which engages with the entire periphery of the opening of the accommodating groove ( 10 ) and the protruding bank portion ( 18 ) when the lid portion is folded on the casing portion ( 2 ).

TECHNICAL FIELD

The present invention relates to a packing body.

Priority is claimed on Japanese Patent Application No. 2014-038781,filed Feb. 28, 2014, the content of which is incorporated herein byreference.

BACKGROUND ART

As a kind of packing body, a clamshell pack is disclosed in PatentLiterature 1 as below. The clamshell pack has a structure in which aproduct is accommodated between front and rear clamshells formed of atransparent plastic and is widely used as one of packing methods used insale of a product in which the product is effectively visible and theproduct can be shipped and arranged.

The clamshell pack disclosed in Patent Literature 1 below has aconfiguration in which an adhesive portion is formed at an outerperipheral portion of each of the pair of clamshells so that the productcan be packed while the product is accommodated between the pair ofclamshells. The clamshell pack includes perforation formed at the insideof the adhesive portion. Thus, a purchaser can extract the product bytearing off the clamshell pack along the perforation so that theperforation is cut.

CITATION LIST Patent Literature

[Patent Literature 1]

Japanese Unexamined Patent Application, First Publication No.2010-168073

SUMMARY OF INVENTION Technical Problem

However, when a packing object is, for example, a mechanical part havinga sliding portion and is coated with a liquid such as lubricating oil,there are cases in which the liquid leaks from the packing body in atransportation state.

In the clamshell pack of Patent Literature 1, there is a possibility ofthe liquid leaks, for example, between the adhesive portions or throughthe perforation.

For this reason, in the related art, the packing object is seal-packedwith a film sheet (for example, a rust-proof film) and is shipped in afancy box. For this reason, packing the packing object is time-consumingand an increase in manufacturing cost due to over-packing is inevitable.

The present invention provides a packing body which is manufactured at alow cost while liquid leakage is suppressed and a packing operation iseasily performed.

Solution to Problem

According to a first aspect of the present invention, a packing bodyincludes: a casing portion which includes an accommodating grooveaccommodating a packing object and a lid portion which is integrallyformed with the casing portion and is capable of being folded on thecasing portion to block an opening of the accommodating groove. Thecasing portion includes a first restraining portion which is provided inthe accommodating groove and restrains the packing object in directionsother than the opening direction of the accommodating groove and aprotruding bank portion which is provided in the entire periphery of theopening of the accommodating groove. The lid portion includes a secondrestraining portion which restrains the packing object in the openingdirection of the accommodating groove when the lid portion is folded onthe casing portion and an engagement concave portion which engages withthe entire periphery of the opening of the accommodating groove and theprotruding bank portion when the lid portion is folded on the casingportion.

According to a second aspect of the present invention, the packing bodyfurther includes a connection portion which integrally connects thecasing portion and the lid portion to each other. The connection portionincludes a first hinge portion to fold one of the casing portion and thelid portion with respect to the other of the casing portion and the lidportion, and a second hinge portion to fold one of the casing portionand the lid portion with respect to the other the casing portion and thelid portion.

According to a third aspect of the present invention, the overall heightof the lid portion may be smaller than the overall height of the casingportion and may be set to a dimension such that the lid portion iscapable of being positioned with respect to the casing portion when theengagement concave portion engages with the protruding bank portion.

According to a fourth aspect of the present invention, the packingobject may include a track and a movable body movable along the track,and the track may be integrally formed with the casing portion or thelid portion in a separable manner.

Advantageous Effects of Invention

According to the present invention, it is possible to obtain a packingbody which is manufactured at a low cost while liquid leakage issuppressed and a packing operation is easily performed.

BRIEF DESCRIPTION OF DRAWINGS

FIG. 1 is a top view showing a packing body 1 of an embodiment of thepresent invention.

FIG. 2 is a front view showing the packing body 1 of the embodiment ofthe present invention.

FIG. 3 is a right view showing the packing body 1 of the embodiment ofthe present invention.

FIG. 4 is a cross-sectional view taken along the line A-A of FIG. 1.

FIG. 5 is a cross-sectional view showing a state in which a lid portion3 is folded on a casing portion 2 of the packing body 1 of theembodiment of the present invention.

FIG. 6A is a configuration diagram showing a track 30 a of theembodiment of the present invention.

FIG. 6B is a configuration diagram showing the track 30 a of theembodiment of the present invention.

FIG. 6C is a configuration diagram showing the track 30 a of theembodiment of the present invention.

FIG. 7 is a schematic top view showing a packing body 1 according to amodified example of the embodiment of the present invention.

DESCRIPTION OF EMBODIMENTS

Hereinafter, an embodiment of the present invention will be describedwith reference to the drawings.

FIG. 1 is a top view showing a packing body 1 of an embodiment of thepresent invention. FIG. 2 is a front view showing the packing body 1 ofthe embodiment of the present invention. FIG. 3 is a right view showingthe packing body 1 of the embodiment of the present invention. FIG. 4 isa cross-sectional view taken along the line A-A of FIG. 1. FIG. 5 is across-sectional view showing a state in which a lid portion 3 is foldedon a casing portion 2 of the packing body 1 of the embodiment of thepresent invention.

As shown in FIG. 1, the packing body 1 includes the casing portion 2which accommodates a packing object X, the lid portion 3 which coversthe casing portion 2, and a connection portion 4 which integrallyconnects the casing portion 2 and the lid portion 3 to each other. Asshown in FIG. 5, the packing body 1 has a configuration in which the lidportion 3 is capable of being folded on the casing portion 2.

The packing body 1 is formed of a transparent plastic material. Thepacking body 1 is formed by integrating the casing portion 2, the lidportion 3, and the connection portion 4. As the plastic material formingthe packing body 1, for example, polyethylene (PE), polyethyleneterephthalate (PET), polypropylene (PP), or other general plasticmaterials can be used. As in the present embodiment, the packing body 1of which the lid portion 3 is openable and closeable with respect to thecasing portion 2 is generally referred to as a blister pack or aclamshell pack.

As shown in FIGS. 2 and 3, the casing portion 2 has a trapezoidal shape.The casing portion 2 includes an upper bottom 2 a which forms an upperportion, a lower bottom 2 b which forms a lower portion, and legs 2 cwhich are formed between the upper bottom 2 a and the lower bottom 2 b.As shown in FIG. 1, the casing portion 2 includes an accommodatinggroove 10 which accommodates the packing object X. The accommodatinggroove 10 is opened at the upper bottom 2 a of the casing portion 2 andis formed with a predetermined depth from the upper bottom toward thelower bottom 2 b. The accommodating groove 10 is formed in a shapesubstantially similar to that of the packing object X in the top view.

The packing body 1 of the present embodiment is used to accommodate alinear motion guide device generally called a linear guide as thepacking object X.

As shown in FIG. 1, the packing object X of the present embodimentincludes a track 30 a and a movable body 40 which is movable along thetrack 30 a. A portion of the packing object X in which the track 30 aand the movable body 40 slide is coated with lubricating oil.

The track 30 a and the movable body 40 form an endless circulation path(not shown). The endless circulation path includes a load ball rollingpath (a load rolling body rolling path), a ball returning path (arolling body returning path), and a pair of turning paths (rolling bodyturning paths) (none of which is shown). The load ball rolling pathincludes a load ball rolling groove (not shown) formed in the movablebody 40 and a ball rolling groove 31 a formed in the track 30 a (seeFIGS. 6A to 6C). The ball returning path extends in parallel to the loadball rolling groove. The ball returning path is formed in the movablebody 40. The turning path is formed in a U shape connecting the loadball rolling path and the ball returning path to each other. The turningpath is formed in the movable body 40. A plurality of balls (not shown)are accommodated and arranged in the endless circulation path.Lubricating oil is supplied to the endless circulation path to cause theplurality of balls to roll smoothly.

When the track 30 a is moved with respect to the movable body 40, theplurality of balls roll in the load ball rolling path formed between theball rolling groove 31 a of the track 30 a and the load ball rollinggroove of the movable body 40. The plurality of balls roll to one end ofthe load ball rolling path and are guided to the turning path. Further,the plurality of balls move along the ball returning path and theturning path and are returned to the load ball rolling path.

In this way, in the packing object X, the movable body 40 can performsmooth linear motion along the track 30 a in such a manner that theplurality of balls are endlessly circulated between the track 30 a andthe movable body 40.

Returning to FIG. 1, the accommodating groove 10 includes a trackaccommodating portion 11, a movable body accommodating portion 12, and afinger insertion portion 13. The track accommodating portion 11accommodates a portion corresponding to the above-described track 30 aof the packing object X. The track accommodating portion 11 is formed ina shape substantially similar to that of the track 30 a in the top view(a substantially rectangular shape). The track accommodating portion 11is formed in the longitudinal direction of the casing portion 2, whichis the direction in which the casing portion 2 is connected to the lidportion 3.

The movable body accommodating portion 12 accommodates a portioncorresponding to the above-described movable body 40 of the packingobject X. The movable body accommodating portion 12 is formed in a shapesubstantially similar to that of the movable body 40 in the top view (arectangular shape). The movable body accommodating portion 12 is formedin the longitudinal direction of the casing portion 2. In addition, thesize of the movable body accommodating portion 12 in the longitudinaldirection of the casing portion 2 is smaller than that of the trackaccommodating portion 11. Further, the size of the movable bodyaccommodating portion 12 in the width direction orthogonal to thelongitudinal direction of the casing portion 2 is larger than that ofthe track accommodating portion 11.

The finger insertion portion 13 is a portion which ensures a space forgripping the packing object X with fingers. The finger insertion portion13 is formed in a circular shape in the top view. A pair of the fingerinsertion portions 13 are provided at both sides of the movable bodyaccommodating portion 12 in the width direction of the casing portion 2.The finger insertion portion 13 is formed to protrude in a circular arcshape from the movable body accommodating portion 12 in the top view.

As shown in FIG. 1, the casing portion 2 includes a first restrainingportion 14 which is provided in the accommodating groove 10 andrestrains the packing object X in directions other than the openingdirection. The first restraining portion 14 includes a concave portionrestraining portion 15 and a convex portion restraining portion 16.

The concave portion restraining portion 15 (15 a, 15 b, 15 c, and 15 d)restrains the packing object X at the inward wall surface of theaccommodating groove 10. The concave portion restraining portion 15 a isan inward wall surface which faces the movable body accommodatingportion 12 in the width direction of the casing portion 2. The concaveportion restraining portion 15 a restrains a portion corresponding tothe movable body 40 of the packing object X. The concave portionrestraining portion 15 b is an inward wall surface which faces themovable body accommodating portion 12 in the longitudinal direction ofthe casing portion 2. The concave portion restraining portion 15 brestrains a portion corresponding to the movable body 40 of the packingobject X. The movement of the portion corresponding to the movable body40 of the packing object X on the plane is restrained by the concaveportion restraining portions 15 a and 15 b.

The concave portion restraining portion 15 c is an inward wall surfacewhich faces the track accommodating portion 11 in the width direction ofthe casing portion 2. The concave portion restraining portion 15 crestrains a portion corresponding to the track 30 a of the packingobject X. The concave portion restraining portion 15 d is an inward wallsurface which faces the track accommodating portion 11 in thelongitudinal direction of the casing portion 2. The concave portionrestraining portion 15 d restrains a portion corresponding to the track30 a of the packing object X. The movement of the portion correspondingto the movable body 40 of the packing object X on a plane is restrainedby the concave portion restraining portions 15 c and 15 d.

The convex portion restraining portion 16 restrains the packing object Xwith a mountain-shaped portion protruding at the center of theaccommodating groove 10. The convex portion restraining portion 16includes a support surface 17 which is a portion corresponding to thetrack 30 a of the packing object X and supporting the track 30 a formedas will be described below from the inside.

FIGS. 6A to 6C are configuration diagrams showing the track 30 a of theembodiment of the present invention. FIG. 6A is a side view showing thetrack 30 a. FIG. 6B is a bottom view showing the track 30 a. FIG. 6C isa cross-sectional view taken along the line B-B of FIG. 6A.

The track 30 a shown in FIGS. 6A to 6C is formed of a transparentplastic material. As the plastic material forming the track 30 a, forexample, polyethylene (PE), polyethylene terephthalate (PET),polypropylene (PP), or other general plastic materials can be usedsimilarly to the packing body 1. The outer shape of the track 30 a isformed of a plastic material.

As shown in FIGS. 6A and 6C, the track 30 a includes the ball rollinggroove 31 a. The inside of the track 30 a is formed as a hollow portion30 a 1 as shown in FIGS. 6B and 6C.

As shown in FIG. 1, the track 30 a is accommodated in the packing body 1while assembled to the movable body 40. The track 30 a serves as aninsertion jig that inserts the movable body 40 to a track (not shown)fixed to a predetermined place. Further, the track 30 a also serves as aholding jig that holds a plurality of balls between the movable body 40and the track in a non-inserted state.

Further, in FIGS. 6A and 6C, the track 30 a includes the ball rollinggroove 31 a. However, the track 30 a formed of the plastic material canbe easily bent. For this reason, it is possible to substantially formthe ball rolling groove 31 a while pressing the balls without includingthe ball rolling groove 31 a.

As shown in FIG. 1, the casing portion 2 includes a protruding bankportion 18 provided in the entire periphery of the opening of theaccommodating groove 10. The protruding bank portion 18 is formed in anannular shape along the edge of the upper bottom 2 a having asubstantially rectangular shape in the top view of the casing portion 2and is formed in a circuit shape in the present embodiment. As shown inFIGS. 2 and 3, the protruding bank portion 18 is formed with a uniformheight from the upper bottom 2 a of the casing portion 2. As shown inFIG. 4, the protruding bank portion 18 includes an inclined surface 18 aat a portion corresponding to the annular inside. The protruding bankportion 18 has a uniform cross-sectional shape at the entire peripheryof the accommodating groove 10.

As shown in FIG. 5, the lid portion 3 includes a second restrainingportion 20 which restrains the packing object X in the opening directionof the accommodating groove 10 (a vertical direction in FIG. 5) when thelid portion is folded on the casing portion 2. The second restrainingportion 20 includes a convex portion restraining portion 21 which isprovided at a position facing the center of the accommodating groove 10when the convex portion restraining portion is folded on the casingportion 2. The convex portion restraining portion 21 has a trapezoidalshape which protrudes toward the accommodating groove 10 of the lidportion 3. The convex portion restraining portion 21 includes a planepressing surface 22 and is used to press the upper surface of thepacking object X with the surface thereof. A pair of convex portions 23are provided at both sides of the convex portion restraining portion 21in the longitudinal direction. Each of the pair of convex portions 23 isprovided at a position facing each of the support surfaces 17 of bothends of the convex portion restraining portion 16 in the longitudinaldirection.

As shown in FIG. 5, the lid portion 3 includes an engagement concaveportion 24 which engages with the entire periphery of the opening of theaccommodating groove 10 and the protruding bank portion 18 when the lidportion is folded on the casing portion 2. As shown in FIG. 1, theengagement concave portion 24 is formed in an annular shape along theedge of the lid portion 3 having a substantially rectangular shape inthe top view. In the present embodiment, the engagement concave portion24 is formed in a circuit shape. As shown in FIGS. 2 and 3, theengagement concave portion 24 is formed with a uniform height (depth) atthe side not facing the accommodating groove 10 of the lid portion 3. Asshown in FIG. 4, the engagement concave portion 24 includes an inclinedsurface 24 a at a portion corresponding to the annular inside. Theengagement concave portion 24 has a uniform cross-sectional shape alongthe entire periphery of the lid portion 3.

As shown in FIG. 2, the overall height H2 of the lid portion 3 is set tobe smaller than the overall height H1 of the casing portion 2. Here, theoverall height H2 of the lid portion 3 is a height from the convexportion 23 to the engagement concave portion 24. Further, the overallheight H1 of the casing portion 2 is a height from the protruding bankportion 18 to the lower bottom 2 b.

As shown in FIG. 2, it is desirable to decrease the overall height H2 ofthe lid portion 3 to be as short as possible in consideration of stableplacement while the packing body 1 is fully opened. However, forexample, when the engagement concave portion 24 is excessively short,the lid portion 3 is not easily positioned with respect to the casingportion 2 when the lid portion is closed and hence the sealing propertybetween the protruding bank portion 18 and the engagement concaveportion 24 cannot be ensured. For this reason, the overall height H2 ofthe lid portion 3 is set to a dimension such that the lid portion iscapable of being positioned with respect to the casing portion 2 whenthe engagement concave portion 24 engages with the protruding bankportion 18.

The heights can be found through, for example, an experiment, asimulation, or the like.

As shown in FIG. 1, the connection portion 4 includes a connectionstripe 25 which integrally connects the casing portion 2 and the lidportion 3 to each other. A pair of the connection stripes 25 areprovided in the width direction of the casing portion 2 and connect bothend portions of the casing portion 2 to both end portions of the lidportion 3. Further, the connection portion 4 includes a first hingeportion 27 which folds one of the casing portion 2 and the lid portion 3(for example, the lid portion 3) with respect to the other of the casingportion 2 and the lid portion 3 (for example, the casing portion 2) anda second hinge portion 28 which folds one of the casing portion 2 andthe lid portion 3 (for example, the lid portion 3) with respect to theother of the casing portion 2 and the lid portion 3 (for example, thecasing portion 2). As shown in FIG. 2, the first hinge portion 27 foldsthe lid portion 3 at the lower end of the leg 2 c of the casing portion2. Further, as shown in FIG. 5, the second hinge portion 28 furtherfolds the lid portion 3 in the vicinity of the upper bottom 2 a of thecasing portion 2. In this way, the connection portion 4 of the presentembodiment can be bent in two levels.

Next, the packing operation and the effect of the packing body 1 withthe above-described configuration will be described.

When the packing object X is packed, the packing body 1 is first placedon a working bed while the lid portion 3 is opened as shown in FIG. 1.Here, since the lid portion 3 is formed to be thinner than the casingportion 2 as shown in FIG. 2, it is possible to suppress the casingportion 2 from floating from the working bed due to the thickness of thelid portion 3. Further, the connection portion 4 can be bent in twolevels and can be inclined while being bent at the first hinge portion27 and the second hinge portion 28. For this reason, it is possible tosuppress the casing portion 2 from floating from the working bed bylocating the lower bottom 2 b of the casing portion 2 and the engagementconcave portion 24 of the lid portion 3 on the same plane whileabsorbing the height of the engagement concave portion 24 of the lidportion 3. In this way, according to the packing body 1 of the presentembodiment, it is possible to improve the stability of the packingoperation.

Next, the packing object X is accommodated in the accommodating groove10 of the packing body 1 shown in FIG. 1. When the packing object X isaccommodated in the accommodating groove 10, the packing object X isrestrained in directions other than the opening direction (a directionorthogonal to the paper in FIG. 1) of the accommodating groove 10. Inthe present embodiment, as shown in FIG. 1, the packing object X isrestrained from the outside by the concave portion restraining portion15 (15 a, 15 b, 15 c, and 15 d) of the first restraining portion 14 andthe movement on a plane including the longitudinal direction and thewidth direction of the casing portion 2 is regulated. Further, thepacking object X is supported from the inside of the track 30 a by thesupport surface 17 of the convex portion restraining portion 16 of thefirst restraining portion 14 (see FIG. 5).

Finally, as shown in FIG. 5, the lid portion 3 is folded on the casingportion 2 to block the opening of the accommodating groove 10. The lidportion 3 includes the second restraining portion 20 which restrains thepacking object X in the opening direction of the accommodating groove 10when the lid portion is folded on the casing portion 2. The secondrestraining portion 20 restrains the packing object X in the openingdirection of the accommodating groove 10 while pressing the packingobject X accommodated in the accommodating groove 10 from above.Accordingly, since six surfaces of the packing object X are restrained,it is possible to protect the packing object X from rattling generatedin a transportation state. Further, since the second restraining portion20 suppresses the upper surface of the packing object X in apredetermined area through the pressing surface 22, it is possible tosuppress the packing object X from being abraded even when slightrattling occurs in a transportation state compared with a point-contactconfiguration.

Further, when the lid portion 3 is folded on the casing portion 2 toblock the opening of the accommodating groove 10, the protruding bankportion 18 and the engagement concave portion 24 engage with the entireperiphery of the opening of the accommodating groove 10 as shown in FIG.5. The protruding bank portion 18 is formed with a predetermined heightfrom the upper bottom 2 a of the casing portion 2. Even when the casingportion 2 is inclined to a certain degree, the lubricating oil appliedto the packing object X does not leak.

Further, the protruding bank portion 18 is formed in a uniform shapeshown in FIG. 4, that is, the circuit shape shown in FIG. 1. Further,the engagement concave portion 24 is also formed in a predeterminedshape shown in FIG. 4, that is, a circuit shape similar to that of theprotruding bank portion 18 shown in FIG. 1. For this reason, theengagement concave portion 24 can engage with the protruding bankportion 18 in the entire periphery of the opening of the accommodatinggroove 10 at a substantially uniform pressure. In this way, according tothe packing body 1 of the present embodiment, since it is possible toimprove a sealing property without any partial difference in engagementpressure with respect to the protruding bank portion 18 and theengagement concave portion 24 in the periphery of the opening of theaccommodating groove 10, it is possible to suppress a liquid fromleaking from the packing body 1.

Further, according to the connection portion 4 of the presentembodiment, the lid portion 3 can be bent at the lower bottom 2 b of thecasing portion 2 by the first hinge portion 27 and the lid portion 3 canbe further bent at the upper bottom 2 a of the casing portion 2 by thesecond hinge portion 28. For this reason, the engagement concave portion24 can easily engage with the protruding bank portion 18 provided on theupper bottom 2 a.

Further, since the overall height H2 of the lid portion 3 is set to adimension in which the lid portion is positioned with respect to thecasing portion 2 when the engagement concave portion 24 engages with theprotruding bank portion 18, the packing operation ends only with theclosing operation of the lid portion 3. In this way, according to thepacking body 1 of the present embodiment, there is no need to adhere thecasing portion 2 and the lid portion 3 and the packing operation iseasily performed. Further, according to the packing body 1 of thepresent embodiment, since the casing portion 2 and the lid portion 3 areintegrally formed of a plastic material in quantity, the packing bodycan be manufactured at a low cost.

In this way, according to the above-described present embodiment, thepacking body 1 includes the casing portion 2 which includes theaccommodating groove 10 accommodating the packing object X and the lidportion 3 which is integrally formed with the casing portion 2 and iscapable of being folded on the casing portion 2 to block the opening ofthe accommodating groove 10. The casing portion 2 includes the firstrestraining portion 14 which is provided in the accommodating groove 10and restrains the packing object X in directions other than the openingdirection of the accommodating groove 10 and the protruding bank portion18 which is provided in the entire periphery of the opening of theaccommodating groove 10. The lid portion 3 includes the secondrestraining portion 20 which restrains the packing object X in theopening direction of the accommodating groove 10 when the lid portion isfolded on the casing portion 2 and the engagement concave portion 24which engages with the entire periphery of the opening of theaccommodating groove 10 and the protruding bank portion 18 when the lidportion is folded on the casing portion 2. By employing theabove-described configuration, it is possible to obtain the packing body1 which is manufactured at a low cost while liquid leakage is suppressedand a packing operation is easily performed.

Further, the following modified example of the embodiment of the presentinvention can be employed.

FIG. 7 is a schematic top view showing a packing body 1 according to amodified example of the embodiment of the present invention.

Further, in the description of FIG. 7, the same reference numerals willbe given to the same or equivalent components from the above-describedembodiment and the description thereof will be simplified or omitted.

The modified example shown in FIG. 7 is different from theabove-described embodiment in that the track 30 a is integrally formedwith the lid portion 3 in a separable manner.

As described above, when the track 30 a is formed of a plastic material,the track can be integrally formed with the packing body 1. As shown inFIG. 7, when the track 30 a is integrally formed with the lid portion 3(or the casing portion 2), a further decrease in cost can be realized.In the example shown in FIG. 7, the track 30 a is connected to the lidportion 3 through the connection stripe 6 and is separable byperforation 5 formed in the connection stripe 6. When the track isseparated along the perforation 5, the movable body 40 can be insertedin accordance with a height of an installed track (not shown). In thisconfiguration, the packing object X can be accommodated in theaccommodating groove 10 by the movable body 40 being inserted into thetrack 30 a, the base of the connection stripe 6 being bent, and the lidportion 3 being closed.

While the preferred embodiment of the present invention has beendescribed with reference to the drawings, the present invention is notlimited to the above-described embodiment. The shapes or combinations ofthe components shown in the above-described embodiment are merelyexamples and can be modified into various forms based on requirements ofdesign without departing from the spirit of the present invention.

For example, in the above-described embodiment, a configuration in whicha plurality of balls are interposed between the track 30 a and themovable body 40 has been described, but the present invention is notlimited thereto. A roller may be used instead of the balls. In thiscase, a ball rolling surface is formed instead of the ball rollinggroove 31 a. Further, the track 30 a and the movable body 40 may slide(in a slide-support manner) without using the balls or the roller.

Further, for example, in the above-described embodiment, a case in whichthe packing object is a linear motion guide device has been exemplified,but the present invention can be also applied to the other packingobjects. The present invention can be appropriately used in, forexample, a packing object such as a spline device, a ball screw device,and a joint device like a robot arm including a sliding portionrequiring lubricating oil.

INDUSTRIAL APPLICABILITY

According to the present invention, it is possible to obtain a packingbody which is manufactured at a low cost while liquid leakage issuppressed and a packing operation is easily performed.

REFERENCE SIGNS LIST

1 Packing body

2 Casing portion

3 Lid portion

4 Connection portion

5 Perforation

10 Accommodating groove

14 First restraining portion

18 Protruding bank portion

20 Second restraining portion

24 Engagement concave portion

27 First hinge portion

28 Second hinge portion

30 a Track

H1 Overall height

H2 Overall height

X Packing object

1. A packing body comprising: a casing portion which includes anaccommodating groove accommodating a packing object; and a lid portionwhich is integrally formed with the casing portion and is capable ofbeing folded on the casing portion to block an opening of theaccommodating groove, wherein the casing portion includes a firstrestraining portion which is provided in the accommodating groove andrestrains the packing object in directions other than the openingdirection of the accommodating groove and a protruding bank portionwhich is provided in the entire periphery of the opening of theaccommodating groove, and wherein the lid portion includes a secondrestraining portion which restrains the packing object in the openingdirection of the accommodating groove when the lid portion is folded onthe casing portion and an engagement concave portion which engages withthe entire periphery of the opening of the accommodating groove and theprotruding bank portion when the lid portion is folded on the casingportion.
 2. The packing body according to claim 1, further comprising: aconnection portion which integrally connects the casing portion and thelid portion to each other, wherein the connection portion includes afirst hinge portion to fold one of the casing portion and the lidportion with respect to the other of the casing portion and the lidportion, and a second hinge portion to fold one of the casing portionand the lid portion with respect to the other of the casing portion andthe lid portion.
 3. The packing body according to claim 1, wherein theoverall height of the lid portion is smaller than the overall height ofthe casing portion and is set to a dimension such that the lid portionis capable of being positioned with respect to the casing portion whenthe engagement concave portion engages with the protruding bank portion.4. The packing body according to claim 1, wherein the packing objectincludes a track and a movable body movable along the track, and whereinthe track is integrally formed with the casing portion or the lidportion in a separable manner.
 5. The packing body according to claim 3,wherein the packing object includes a track and a movable body movablealong the track, and wherein the track is integrally formed with thecasing portion or the lid portion in a separable manner.
 6. The packingbody according to claim 2, wherein the overall height of the lid portionis smaller than the overall height of the casing portion and is set to adimension such that the lid portion is capable of being positioned withrespect to the casing portion when the engagement concave portionengages with the protruding bank portion.
 7. The packing body accordingto claim 2, wherein the packing object includes a track and a movablebody movable along the track, and wherein the track is integrally formedwith the casing portion or the lid portion in a separable manner.
 8. Thepacking body according to claim 6, wherein the packing object includes atrack and a movable body movable along the track, and wherein the trackis integrally formed with the casing portion or the lid portion in aseparable manner.